EP0164709B1 - Verfahren zum Aufbau von Luftreifen-Rohlingen - Google Patents

Verfahren zum Aufbau von Luftreifen-Rohlingen Download PDF

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Publication number
EP0164709B1
EP0164709B1 EP85107094A EP85107094A EP0164709B1 EP 0164709 B1 EP0164709 B1 EP 0164709B1 EP 85107094 A EP85107094 A EP 85107094A EP 85107094 A EP85107094 A EP 85107094A EP 0164709 B1 EP0164709 B1 EP 0164709B1
Authority
EP
European Patent Office
Prior art keywords
length
layer
belt
speed
drum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP85107094A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0164709A2 (de
EP0164709A3 (en
Inventor
Werner Wedekind
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fried Krupp AG Hoesch Krupp
Original Assignee
Fried Krupp AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fried Krupp AG filed Critical Fried Krupp AG
Priority to AT85107094T priority Critical patent/ATE86182T1/de
Publication of EP0164709A2 publication Critical patent/EP0164709A2/de
Publication of EP0164709A3 publication Critical patent/EP0164709A3/de
Application granted granted Critical
Publication of EP0164709B1 publication Critical patent/EP0164709B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/30—Applying the layers; Guiding or stretching the layers during application
    • B29D30/3007—Applying the layers; Guiding or stretching the layers during application by feeding a sheet perpendicular to the drum axis and joining the ends to form an annular element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/38—Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
    • B29D30/44—Stretching or treating the layers before application on the drum
    • B29D2030/4437—Adjusting the dimensions of the layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/38—Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
    • B29D30/44—Stretching or treating the layers before application on the drum
    • B29D2030/4437—Adjusting the dimensions of the layers
    • B29D2030/4456—Adjusting the dimensions of the layers by using speed differences, e.g. between conveyors or between conveyor and drum

Definitions

  • the invention relates to a method according to the preamble of claim 1.
  • the layers are first brought onto the build-up drum from the lay-up belt and build-up drum at the same speed. Then the tape is at one of the peripheral speed the building drum and its diameter derived second speed driven so that the layers are stretched or compressed more or less over part of their length and have undesirable thickness deviations over their entire length.
  • the invention has for its object to provide a method with which an automatic application of the layers can be achieved while maintaining both the respective exact circumferential length and during a revolution of constant thickness without the diameter of the building drum having to be changed.
  • the object is achieved in that the change in length is effected in that the build-up drum is operated when a layer is applied by means of a revolving support tape with a constant circumferential speed per revolution, which is set by adjusting the angular speed on the build-up drum as a function of the measured value determined in relation to each position the speed of the support tape is set so that the joint surface is closed.
  • the advantage of the invention lies primarily in the fact that the method is versatile and adaptable, eg by cutting the layers to a minimum, not limited to undersize.
  • the layers can be part of a belt, carcass, tread or the like. be and contain reinforcing inserts made of steel wire or other suitable material. It also becomes possible to approximate the required length of the layers as closely as possible, so that a high quality of the pneumatic tires is achieved by uniformity.
  • a layer having the actual length l is fed to a build-up drum 3 on a lay-up belt 1 by the endless revolving lay-up band 1 resting with its feeding end 4 on the build-up drum 3 rotating in the same direction and at this point the Layer 2 passes.
  • the support band 1 and the build-up drum 3 are each provided with holding devices (e.g. when applying so-called textile belts with suction cups), the holding devices being dimensioned or controlled in such a way that the layer 2 is released from the lay-up band and taken over by the build-up drum.
  • the actual length l of the layer 2 has been determined prior to application and is automatically entered into a computer, where it is compared with that from the relevant scope of the building drum 3 as a setpoint for the length of the layer 2.
  • the loading belt and the building drum each have a drive, which are now controlled so that the peripheral speeds of the relevant circumference correspond to the ratio between the actual and the desired length of the layer 2.
  • the build-up drum 3 rotates faster than the lay-up belt 1 by an amount such that the position of the start of the position 2 on the build-up drum 3 corresponds to the position of the End of the layer coincides, that is, the butt surface is closed, which is achieved by stretching the layer accordingly.
  • the layer 2 is compressed during application.
  • the actual and target lengths match - which is the aim of the method according to the invention - the same peripheral speed ratio is used.
  • the subsequent layer is then applied in the same way to the first, now annular layer applied to the building drum 3 by means of the application tape 1, taking into account the now larger drum diameter or circumference. It is not necessary to take the changing circumference into account if the angular speed is set on the building drum.
  • the layers are usually fed from a band-shaped strip and cut off. Achieving a certain actual length of the layers is known to cause difficulties because the material made of rubber or similar materials has embedded reinforcing threads or strands that cannot or must not be cut through. The threads, strands or wires are arranged at an oblique angle in the strip, which must then be cut at the same angle. In addition, changes in the actual length also result from undulating warpage when the strip is fed. Since the support tape 1 according to the invention is provided with devices that apply the layer to be applied close to its belt, the actual length of the position in this fixed state on the support tape can be determined very precisely.
  • a rocker 6 is pivoted on a portal-like frame 5 about a horizontal axis 7, which carries the support tape 1 '.
  • the rocker can be adjusted by means of a linkage 9 driven by a pneumatic cylinder 8 to the building drum 3 'displaced with the horizontal axis.
  • the building drum 3 ' can be adjusted to different outer diameters in a known manner.
  • the laying belt 1 ' is preceded by a rotating cutting belt 10 mounted on the frame 5, above which a cutting device 11 for cutting the layers is arranged.
  • the application belt 1 ' is driven by means of a DC gear motor 12 which is arranged on the frame 5 and which acts on a drive roller of the application belt 1' via a toothed belt 13.
  • the drive 14 of the cutting belt 10 is coupled to this drive.
  • a strip of belt material is pulled off a supply roll 15 and fed to the lay-up belt 1 'via the cutting belt 10.
  • a light scanner 16 Arranged at the entrance of the conveyor belt 1 'is a light scanner 16 which, when passing through the beginning of the strip, which also represents the beginning of the first layer, starts a preselection counter (not shown) which counts the pulses of a pulse generator coupled to the drive of the conveyor belt 1'. Regardless of the speed of the conveyor belt, each recorded pulse corresponds to a specific tape feed.
  • the laying and cutting belt are stopped and the cutting device 11 is activated to cut off the layer.
  • the lay-on belt 1 conveys the cut-off layer until the beginning of the position, the lay-on position for transfer to the build-up drum 3' has reached.
  • This position is set and determined and switched by a further light sensor 17, which is arranged above the laying tape 1 'near the building drum 3'.
  • a further pulse counter is started at the same time as the preselection counter for determining the cutting length of the layer, which counter is switched off as soon as the end of the layer passes the light sensor 16.
  • the number of pulses determined by this pulse counter is proportional to the actual length of the layer.
  • a circumferential cover tape 18 is arranged thereon between the cutting tape 10 and the building drum 3'. This ensures a further improvement in the determination of the actual length of the position.
  • the speed ratio calculated from the determined actual length and the desired length and the control of the drives of the lay-up belt and build-up drum are abandoned, the rocker 6 swivels until the lay-up of position 2 on the build-up drum 3 '. Then the electrically coupled drives of the building drum and the loading belt are switched on and the position, as already described, is applied.
  • An even greater accuracy in the application of a layer to the building drum is achieved by regulating the speeds of the laying belt and the building drum at the beginning of the application on the basis of determined actual values.
  • impulses from the drive of the conveyor belt and from one directly the shaft of the building drum coupled pulse generator recorded and compared with each other.
  • a pulse translator raises or lowers the pulse frequency in the event of a deviation to the level of the other side.
  • synchronous control of the drives keeps the pulse frequencies on both sides at the same level.
  • adjustable building drums normally only need to be adjusted once to the intended tire size. Should there be slight diameter adjustments in the course of the production of a series of the same tires, these can be compensated for without difficulty by the method according to the invention during application.
  • magnets arranged to hold the layers under the support tape or the casing of the build-up drum are provided, which are arranged or dimensioned such that the transfer of the position from the lay-up belt to the build-up drum runs smoothly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tyre Moulding (AREA)
  • Road Repair (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Catching Or Destruction (AREA)
  • Tires In General (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
EP85107094A 1984-06-13 1985-06-08 Verfahren zum Aufbau von Luftreifen-Rohlingen Expired - Lifetime EP0164709B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85107094T ATE86182T1 (de) 1984-06-13 1985-06-08 Verfahren zum aufbau von luftreifen-rohlingen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3421831 1984-06-13
DE19843421831 DE3421831A1 (de) 1984-06-13 1984-06-13 Verfahren zum aufbau von luftreifen-rohlingen

Publications (3)

Publication Number Publication Date
EP0164709A2 EP0164709A2 (de) 1985-12-18
EP0164709A3 EP0164709A3 (en) 1988-05-04
EP0164709B1 true EP0164709B1 (de) 1993-03-03

Family

ID=6238199

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85107094A Expired - Lifetime EP0164709B1 (de) 1984-06-13 1985-06-08 Verfahren zum Aufbau von Luftreifen-Rohlingen

Country Status (8)

Country Link
EP (1) EP0164709B1 (no)
JP (1) JPH0641182B2 (no)
AT (1) ATE86182T1 (no)
DD (1) DD235600A5 (no)
DE (1) DE3421831A1 (no)
ES (1) ES8609024A1 (no)
NO (1) NO852295L (no)
SU (1) SU1517754A3 (no)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3926721A1 (de) * 1989-08-12 1991-02-14 Krupp Maschinentechnik Verfahren zur ermittlung der groesse des spleisses, spleissversatzes bzw. der spleissueberlappung beim aufbau von radialreifen und vorrichtung zur durchfuehrung des verfahrens
US5292398A (en) * 1989-11-13 1994-03-08 Mitsubishi Jukogyo Kabushiki Kaisha Apparatus for joining a tread in a machine for making a tire
AU624743B2 (en) * 1989-11-13 1992-06-18 Mitsubishi Jukogyo Kabushiki Kaisha Method for joining a tread in an apparatus for making a tire
JP3190051B2 (ja) * 1990-12-07 2001-07-16 株式会社ブリヂストン 帯状部材の貼付け方法および装置
DE4407964A1 (de) * 1994-03-10 1995-09-14 Continental Ag Verfahren und Vorrichtung zum automatischen Auflegen und Spleißen von Materialbahnen auf eine Reifenaufbautrommel
CA2180767A1 (en) * 1995-11-28 1997-05-29 Daniel Ray Downing Tire tread server and method
DE19639366A1 (de) * 1996-09-25 1998-03-26 Continental Ag Karkasse radialer Bauart, Fahrzeugluftreifen mit derartiger Karkasse und Verfahren zur Herstellung eines Fahrzeugluftreifens
BR112014014196B1 (pt) * 2011-12-22 2020-11-24 Pirelli Tyre S.P.A. processo para fabricação de pneus que rodam para rodas de veículos, e, aparelho para construção de pneus que rodam para rodas de veículos
NL2009769C2 (en) * 2012-11-07 2014-05-08 Vmi Holland Bv Tyre layer application assembly.

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE674382A (no) * 1964-12-31 1900-01-01
DE2105765C3 (de) * 1971-02-08 1978-10-19 Continental Gummi-Werke Ag, 3000 Hannover Vorrichtung zum Aufbringen eines Rohlaufstreifens auf die Karkasse eines Luftreifenrohlinges
US3847705A (en) * 1973-01-22 1974-11-12 Uniroyal Inc Apparatus for conveying a tire tread
JPS5133594A (en) * 1974-05-27 1976-03-22 Matsushita Electric Works Ltd Shugojutakuniokeru jidohochishisutemu
DE2507726C2 (de) * 1975-02-22 1982-09-30 Continental Gummi-Werke Ag, 3000 Hannover Einrichtung zum Verändern der Länge und zum Überführen von Laufstreifen für Fahrzeugluftreifen
DE2819410A1 (de) * 1978-05-03 1979-11-08 Metzeler Kautschuk Verfahren zur aufbringung eines laufstreifens auf eine reifenaufbautrommel sowie vorrichtung zur durchfuehrung des verfahrens
JPS57125030A (en) * 1981-01-27 1982-08-04 Bridgestone Corp Method and apparatus for winding strip rubber material around molding drum
DE3213366C1 (de) * 1982-04-10 1983-11-24 Continental Gummi-Werke Ag, 3000 Hannover Verfahren zum Aufbauen von Luftreifen-Rohlingen
NZ203260A (en) * 1982-09-27 1986-04-11 Firestone Tire & Rubber Co Applying cut fabric to drum:controlled stretching for fabric end abutment
JPS6083827A (ja) * 1983-10-17 1985-05-13 Mitsubishi Heavy Ind Ltd 未加硫ゴムシート巻着制御装置

Also Published As

Publication number Publication date
EP0164709A2 (de) 1985-12-18
DE3421831C2 (no) 1990-11-22
NO852295L (no) 1985-12-16
JPS6111234A (ja) 1986-01-18
ATE86182T1 (de) 1993-03-15
JPH0641182B2 (ja) 1994-06-01
DE3421831A1 (de) 1985-12-19
SU1517754A3 (ru) 1989-10-23
DD235600A5 (de) 1986-05-14
ES8609024A1 (es) 1986-08-01
ES544082A0 (es) 1986-08-01
EP0164709A3 (en) 1988-05-04

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